GaDeLaC, the Game Description Language Compiler is a tool for compiling GDL into other languages developed by Abdallah Saffidine and Tristan Cazenave. There is a workshop paper describing the approach. The resulting game descriptions are often more efficient for simulation and search.

RL-GGP is a Java-based platform integrating reinforcement learning algorithms in GGP using RL-glue. RL-GGP was developed by José Luis Benacloch-Ayuso at Universidad Politécnica de Valencia in Spain.